How to maping add and multiplication calculation to FPGA logic element, not DSP unit in AOC environment

Newer versions of the compiler will automatically map integer operations to logic when DSP overutilization is detected by the compiler. However, as far as I know, this will never happen with floating-point operations. I am pretty sure I opened a ticket with Intel Premiere Support a long time ago (before Intel acquired Altera) requesting a new feature to be added to the compiler to give programmers control over which math operations are mapped to DSPs and which are mapped to logic but as you can see, such functionality is still not available. Hence, I am afraid there is no straightforward way to fix your problem.